http://www.ign.com/articles/2013/11/01/gta-online-cash-compensation-coming-next-week

Rockstar has announced that the 500,000 GTA$ compensation for players affected by GTA Online's launch issues should be delivered next week.

The compensation was originally meant to arrive in October, but delayed until Rockstar felt comfortable it'd removed all the bugs from the game that were causing players to lose progress.

That should supposedly happen with patch 1.05, due out early next week. If all goes according to plan this'll mean that the cash can be delivered shortly after.

"Currently, we expect the next title update (1.05) addressing player progress loss issues to be available sometime early next week," an update explains. "Following that, we hope to deliver everyone’s GTA$ Stimulus Package before the end of next week. A big thank you to GTA Online players worldwide for your continued patience and understanding and we will continue to keep you all updated."

This means you should have the cash with you in time to buy all the new beach items that are due to be added shortly.